miner local1.warn minergate[5986]: Here comes unexpected death, lights off!
miner local1.warn minergate[5986]: Dye (Signal)!


 miner user.notice root: Mining manager not running
 miner user.notice root: free-memory:452
 miner user.notice root: Watchdog caught problem - what to do what to do?
 user.notice root: Watchdog caught problem: soft handle


This is happening quite often now. how can i fix this? and why does it happen